Based on evaporation of fountain solution from a rotating blanket cylinder to create an image that may be inked and printed, a digitally addressable heater array at or just below the blanket surface evaporates deposited fountain solution and forms a fountain solution latent image on the surface. The heater array has controllable heating elements (e.g., field effect transistors, thin film transistors) that provide a transient heat pattern on the surface to evaporate the fountain solution. Heat is generated by current flow in the heating elements, and power developed by the heating circuit is the product of source-drain voltage and current in the channel. Current may be supplied along data lines by an external voltage controlled by digital electronics to provide the desired heat at heating elements addressed by a specific gate line. The heater array may include a current return line that may be a 2-dimensional mesh.

Based on evaporation of fountain solution from a rotating blanket cylinder to create an image that may be inked and printed, a digitally addressable heater array at or just below the blanket surface evaporates deposited fountain solution and forms a fountain solution latent image on the surface. The heater array has controllable heating elements (e.g., field effect transistors, thin film transistors) that provide a transient heat pattern on the surface to evaporate the fountain solution. Heat is generated by current flow in the heating elements, and power developed by the heating circuit is the product of source-drain voltage and current in the channel. Current may be supplied along data lines by an external voltage controlled by digital electronics to provide the desired heat at heating elements addressed by a specific gate line. The heater array may include a current return line that may be a 2-dimensional mesh.

Fountain solution latent images are provided on an inking blanket without using laser-induced evaporation systems. Approaches include a rotatable charge retentive surface configured to receive an unfused toned electrostatic pattern of toner particles adhered thereto via electrophotography. The toner includes small diameter polymeric or inorganic particles that may have no color pigment to appear transparent or translucent. Fountain solution is disposed on at least one of the toner, the charge retentive surface and a transfer substrate. The transfer substrate is adjacent the charge retentive surface and forms a nip therebetween, with the transfer substrate sandwiching the unfused toned electrostatic pattern of toner particles and fountain solution against the charge retentive surface at the nip. Fountain solution sandwiched between the surfaces splits as the surfaces separate downstream the nip, leaving a fountain solution latent image remaining on the transfer member surface based on the electrostatic charged pattern on the charge retentive surface.

Fountain solution latent images are provided on an inking blanket without using laser-induced evaporation systems. Approaches include a rotatable charge retentive surface configured to receive an unfused toned electrostatic pattern of toner particles adhered thereto via electrophotography. The toner includes small diameter polymeric or inorganic particles that may have no color pigment to appear transparent or translucent. Fountain solution is disposed on at least one of the toner, the charge retentive surface and a transfer substrate. The transfer substrate is adjacent the charge retentive surface and forms a nip therebetween, with the transfer substrate sandwiching the unfused toned electrostatic pattern of toner particles and fountain solution against the charge retentive surface at the nip. Fountain solution sandwiched between the surfaces splits as the surfaces separate downstream the nip, leaving a fountain solution latent image remaining on the transfer member surface based on the electrostatic charged pattern on the charge retentive surface.

A heating circuit having an array of switching heating elements (e.g., field effect transistors, thin film transistors) provides a transient heat pattern over a surface (e.g., substrate, imaging member surface, transfer roll surface) moving relative to the heating circuit, to produce a pixelated heat image and heat a target pattern on the surface. Heat is generated by current flow in the heating elements, and the power developed by the heating circuit is the product of source-drain voltage and current in the channel. Digital addressing may accomplished by matrix addressing the array. Current may be supplied along data address lines by an external voltage controlled by digital electronics understood by a skilled artisan to provide the desired heat at a respective heating element pixels addressed by a specific gate line. The circuit may include a current return line that may be low resistance, for example, by using a 2-dimensional mesh.

A heating circuit having an array of switching heating elements (e.g., field effect transistors, thin film transistors) provides a transient heat pattern over a surface (e.g., substrate, imaging member surface, transfer roll surface) moving relative to the heating circuit, to produce a pixelated heat image and heat a target pattern on the surface. Heat is generated by current flow in the heating elements, and the power developed by the heating circuit is the product of source-drain voltage and current in the channel. Digital addressing may accomplished by matrix addressing the array. Current may be supplied along data address lines by an external voltage controlled by digital electronics understood by a skilled artisan to provide the desired heat at a respective heating element pixels addressed by a specific gate line. The circuit may include a current return line that may be low resistance, for example, by using a 2-dimensional mesh.

Examples are directed toward anticounterfeit markings printed on a substrate. A method includes determining with a microprocessor running computer executable code non-transitorily stored on tangible computer readable media that: a first microprinting appears on a front side of the substrate as front side markings of first portions of a plurality of characters having dimensions in a micrometer range when viewed from the front side with reflected light, a second microprinting appears on a back side of the substrate as back side markings of second portions of the plurality of characters having dimensions in the micrometer range when viewed from the back side with reflected light, and the first microprinting and the second microprinting in combination appear as microprinting of whole characters of the plurality of characters when viewed with transmitted light.

A roll-to-plate process for texturing or patterning discrete substrates, such as displays, lighting or solar panels comprising the steps of supplying an imprinting lacquer, texturing or patterning the imprinting lacquer with an imprint texture which imprint texture is formed by openings and elevations thus creating volumes in the imprint texture to obtain an imprinted lacquer and optionally followed by curing the imprinted lacquer to obtain a solidified textured or patterned layer, characterized in that the texturing or patterning is performed with an imprint texture that comprises domains of greater volumes at its edges, and with a flexible stamp with a Young's Modulus of between 0.1 Giga Pascal (GPa) and 10 Giga Pascal (GPa).

A roll-to-plate process for texturing or patterning discrete substrates, such as displays, lighting or solar panels comprising the steps of supplying an imprinting lacquer, texturing or patterning the imprinting lacquer with an imprint texture which imprint texture is formed by openings and elevations thus creating volumes in the imprint texture to obtain an imprinted lacquer and optionally followed by curing the imprinted lacquer to obtain a solidified textured or patterned layer, characterized in that the texturing or patterning is performed with an imprint texture that comprises domains of greater volumes at its edges, and with a flexible stamp with a Young's Modulus of between 0.1 Giga Pascal (GPa) and 10 Giga Pascal (GPa).

Solvent transfer printing method for applying a pattern (1) made of a non-soluble material and non-dispersible (10) on the surface of an object (2), the method comprising the following steps: m1/forming a pattern (1) on a surface of a solvent-soluble substrate (3), m2/depositing the solvent-soluble substrate (3) on the surface of a solvent bath (5), on the side of the substrate opposed to the side on which the pattern is applied, in order to dissolve partially the substrate (3), m3/dipping the object (2) in the bath (5), so that the surface of the object (2) comes into contact with the pattern (1), m4/getting the object (2), on which the pattern (1) is applied, out of the bath (5), m5/drying the object (2).